A nice clear field of view in was in the development region southeast of Denver. Based on the differences in CAPE analysis in the LAP, GFS, and RAP, the NUCAP sounding was available at the optimal time to check its vertical profile, observed and derived CAPE in the undisturbed environment where the storms were headed.  This image below shows that clear area on the visible imagery vicinity KLHX La Junta, CO where the surface temp and dewpoint were 83/59.  The unmodified NUCAPS  sounding yielded about 1900 J/kg SBCAPE as the surface dewpoint was 60 but the temperature was much cooler than observed.  However, modifying the sounding with the observed surface T/Td at KLHX, the resulted CAPE was over 2800 J/kg much higher than just about any other method.   MrSnow/Shasta